Although the universe is thought to be about 13.77 billion years old, planet Earth is much younger than that. Current estimates put the age of Earth at around 4.54 billion years, give or take ...

Jul 14, 2009 · The story of evolution spans over 3 billion years and shows how microscopic single-celled organisms transformed Earth and gave rise to complex organisms like animals

Scientists’ best estimate is that the universe is about 13.8 billion years old. But, like so many of the largest-scale properties of the universe, we are not entirely sure about its age. There ...

Jan 28, 2026 · An extraordinary 512-million-year-old fossil site has been discovered in southern China, preserving in vivid detail almost an entire ecosystem from a time shortly after Earth’s first mass ...

Jul 15, 2025 · Earth Ancient rocks show earliest evidence of tectonic activity on Earth The origins of plate tectonics on Earth are hotly debated, but evidence from Australia now shows that parts of the …

Jun 26, 2025 · Just over 4 billion years ago, magma from Earth’s mantle infiltrated a fracture in the young planet’s primordial crust. Over the following aeons, nearly all of the planet’s early crust ...

Jan 22, 2024 · As early as 3.4 billion years ago, life on Earth had formed diverse communities. Exceptionally preserved remains from the period reveal an ecosystem of microorganisms that …

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Jul 16, 2025 · Scientists have discovered a new type of sedimentary rock made of debris from slag heaps, formed in the geological blink of an eye. Could this be good news, asks Graham Lawton

May 24, 2010 · Snowball Earth 2.4 to 2.1 billion years ago The Huronian glaciation is the oldest ice age we know about. The Earth was just over 2 billion years old, and home only to unicellular life-forms.